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me now, nbc news justin correspondent pete williams and michael leiter. pete, ha have you learn about the bombs themselves? >> well, what we're told by authorities, andrea, is that they're crudely made. they appear to have been assembled inside a pressure cooker. it may be some of our younger viewers don't know what that is, but in the olden days when you wanted to make something tender, you put it in this pot with a tight lid on it. and the steam wouldn't escape and you could build up pressure and things cook faster in them. the premicrowave days. inside a pot like this, a pressure cooker is assembled the device. it includes a low-power explosive. something like black or smokeless powder, gun powder, if you will. not a high explosive like dynamite or a plastic explosive or the common tatp, which seems to be the one of voice of terrorists when they build bombs, terror bombs overseas. so it's crudely made, it's set off they believe by some kind of electronic timer. it's carried to the scene, they believe, in some kind of back pack and then just set down before the devices go off. unfor
and initially tested positive for the poison, ricen. pete williams will join us with the latest on this story. but first, while we may not know anything about who attacked the boston marathon yesterday or why, just over 24 hours after the explosion, there is a lot of new information tonight about the devices used in the attack. about to exekt from the investigation. there were two explosive devices which exploded yesterday. no more along the route or city of boston. the devices appear to have consists of explosive and shrapnel put into pressure cookers. they have recovered black nylon bags at the sights of both devices. they are believed to have been used to transport the devices to the scene. what happens next is that every single fragment of bomb material recovered from those sites will be sent to an fbi land in quantico, virginia, where they can be analyzed by the fbi and atf experts and even checked for dna. investigators have launched a major push to seek information from the public, including tips on suspicious behavior and photo and video taken around the race. >> the person who did th
? we've been told by our own pete williams that we're talking about two bombs, pressure cookers, loaded with some sort of material in backpacks. >> well actually the news accounts over the last 24 hours have gotten much better as you know. i think that the fbi and the boston police department and the state police have done a good job of sorting some of the early data and getting the information out to the public. i thought the governor's position was very helpful. >> what are you hearing from the white house? what help are you getting from them? >> well, you note that the president in his press conference or at least his remarks, indicated for the first time that it was an act of terror. i think that given the aftermath of the richard jewel situation back in atlanta. that the white house was cautionary, but declaring this is an ak of terror it means it was undertaken in a sophisticated manner. let me say that the place where these two bombs exploded near the lennox hotel, behind the boston public library, on boylston street, it is the apex of where everybody gathers at the end of the ma
at the fragments left from the pieces of a pressure cooker. nbc news' pete williams points out that one of the pressure cooker lids ended up on the roof of a nearby building because the force of the explosion was so great. this photo shows bbs and a nail believed to be part of the shrapnel in one of the bombs along what could be the zipper from one of those black backpacks or nylon bags authorities have mentioned. investigators know the type of batteries use and michael isikoff reports they were in a battery pack made by a company in california used to power toy cars and often for sale in hobby shops. officials have opened up more of the area around the crime scene, focusing their investigation primarily on those two explosion points and the stretch of boylston street. i'm joined now by massachusetts governor deval patrick. thank you for joining me. >> thank you, lawrence. >> i'd like you to tell the story about how you found out about these explosions. i heard you explain this on a local interview. >> i had been out at the finish line crowning the men's and women's winners earlier in t
. >> lester in boston thank you so much. nbc's justice correspondent pete williams following overnight developments in the investigation. pete, good morning. it seems there is no clearer picture as to who may be behind this. >> i think that's certainly true although there is high hope that they will be able to answer that shortly. they know for certain the attack involved two bombs, but many other packages found on the street were deemed suspicious and destroyed and that took a lot of time last night. there were many packages to check because after the explosions officials say many people simply dropped what they were carrying and ran, leaving their packages behind. there were conflicting accounts whether investigators found two unexploded bombs. this morning a senior law enforcement official says there were no unexploded devices, just the two that went off. several officials say the bombs that went off included shrapnels to multiply the injuries, bebes and ball bearings. investigators are investigating video to see if they can see individuals placing the packages. there is a video fro
. >> bringing in pete williams into the discussion. i want to start with the images, the first one lester showed u. us, the immediate aftermath, from across the street, looking down. you will see a man in black, his clothing has been shredded, running from the scene. are investigators looking at that? this is not the one okay, here is the one we are talking about. our invest gators looking at him running to or away from terror? >> i would say running away. with a window over the finish line, we saw this man. can you see the impact of the blast partially ripped his clothes away. now, the same thing was said about this exchange student. we are not sure -- it could be the exchange student, they are not sure. if any event, the fbi no longer considers him, they think he was just a victim. >> and the mail box, there is a package, a bag at the foot of that mail box, we zoom in on that one. and the immediately aftermath of the explosion. it looks like it took place almost exactly in that spot. what you are hearing from invest gators from this? >> they have other pictures that show the same thing. the q
williams who is live in washington. pete, what are you hearing about the investigation to the bombings in boston? >> right. it's all about putting pieces of puzzles together. first of all, the devices themselves are here in the suburban washington in the fbi's crime lab where they will try to reinstruct them. they believe they were carried to the scene in black nylon duffel bags and say that because of the weight that each device probably weighed 20 pounds filled with gun powder and shrapnel and in pressure cookers. you can see the brand name of the pressure cookers in a couple of the pictures that we have obtained. the second part of it is the pictures themselves that they are asking people to send in and they are getting a huge amount, so far, three terra bytes of data that is thousands of hours of video and still pictures. they want more. this is from our affiliate in boston. it shows in the first picture what appears to be a trash bag next to the green thing is a trash container and looking at whether the bombs might have been place inside trash bags to look less conspicuous and a
Search Results 0 to 6 of about 7